Cita APA (7th ed.)

Hawkins, D. I., & Tull, D. S. (1987). Marketing research : measurement and method: By Donald S. Tull (4th ed.). Macmillan Pub.

Cita Chicago (17th ed.)

Hawkins, Del I., i Donald S. Tull. Marketing Research : Measurement and Method: By Donald S. Tull. 4th ed. New York: Macmillan Pub, 1987.

Cita MLA (9th ed.)

Hawkins, Del I., i Donald S. Tull. Marketing Research : Measurement and Method: By Donald S. Tull. 4th ed. Macmillan Pub, 1987.